Comparisons with other European Late Jurassic hybodontiform-bearing localities demonstrate fairly homogenous distribution patterns characterized by large-bodied epipelagic forms of high dispersal ability. Meristodonoides sp.), this assemblage is remarkable in that there are only very few Mesozoic hybodontiform assemblages with more large-toothed genera or even species. In spite of its low taxonomic diversity, consisting of four large-toothed taxa (viz., Strophodus udulfensis, Asteracanthus ornatissimus, Planohybodus sp. Here, we provide a detailed taxonomic reassessment of a historically collected chondrichthyan dental assemblage from the lower Kimmeridgian of Czarnogłowy in north-western Poland and discuss its significance for better understanding hybodontiform diversity patterns prior to their post-Jurassic decline in fully marine environments. The new fossils documented here reveal that hybodontiforms were already adapted to freshwater environments in the Lower Triassic rather than in the Jurassic in China. rugianus ranging from the Lower Triassic to the Lower Cretaceous. Group 1, which is characterized by clutching-type dentitions, includes eight species (three of which remain unnamed) ranging from the Middle Triassic to Lower Cretaceous, while group 2, characterized by cutting-crushing type dentitions, comprises 11 species (six of which remain unnamed) including the type-species, P. A review of the species assigned to Parvodus and similar small hybodontiform sharks reveals two distinct ecomorphological groups. This new species, together with additional hybodontiform remains, provides new evidence of shark occurrences in the aftermath of the end-Permian mass extinction event, when freshwater environments might have acted as centers of origin rather than refugia for sharks. nov., the oldest record of this small-toothed lonchidiid shark genus, extending its range well down into the Lower Triassic. The isolated teeth are assigned to three unidentified hybodontiforms but also to a new species of Parvodus, P. Some images shown in demo pages is used under license and cannot be redistributed in the download package.Hybodontiform shark teeth, cephalic and fin spines as well as placoid scales are reported here for the first time from the continental, Lower Triassic Dongchuan Formation near the village of Zhaojia (Huize County, Yunnan Province) in southwest China. Please Note : This item is static HTML5 Template, It’s not a WordPress Theme. Advanced helper CSS classes to customise design.Highly minify JS and CSS for better performance.Option to save email addresses in text file. Option to redirect on thank you page on form success submit.Sticky and smooth scrolling menu options to create one page layout quickly.Unlimited number of design possibility with combination of design blocks.10+ attractive, powerful and pixel perfect ready to use demos.Moxa is a powerful, multipurpose template built with block base modular system at the core that gives flexibility to built custom design layout and unlimited design possibility. Moxa HTML template include 10+ ready-to-use Home pages & 30+ HTML Files with the package. Create powerful site or page with Moxa template like Business, Corporate, Medical, Travel, Construction, Real Estate, Media Agency, Portfolio, Agency, Magazine, Parallax, Wedding, Christmas, Restaurant, Blog or App Showcase, just everything is possible. Moxa is a Powerful, Responsive Multi-Purpose Landing page & One page HTML5 Template.
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